Reference a control in the CommandItemTemplate from the NeedDataSource event

[Scott]

Hi, 
I've got a checkbox in the <CommandItemTemplate>
In the NeedDataSource event, I'm trying to capture whether the checkbox is checked

Can anyone tell me how to reference this checkbox control ?

Thanks :)

[Shinu]

Hello Scott,

You can reference the controls in ItemDataBound event. ItemDataBound is fired only when grid binds to data. Here is the sample code.
C#:

protected void grid_ItemDataBound(object sender, GridItemEventArgs e)
{
  if (e.Item is GridCommandItem)
 {
 GridCommandItem item = (GridCommandItem)e.Item;
 CheckBox chk = (CheckBox)item.FindControl("CheckBox1");
  }
}

-Shinu.

[Miky]

I have this exact same problem, but in my case it's a RadComboBox.  It's important that I get the value in the NeedDataSource event because this decide which databinding i'm doing as of the "Select"...

The RadComboBox works perfectly, and teh data is filled and kept between each postback, but i dunno how to go get my value.

Regards,

[Eyup]

Hi Michel,

NeedDataSource event fires too early in the control's lifecycle in order to get the command item. Therefore, you will need to use a Session or ViewState variable to save the selected item's value. Another approach would be to try the following:
http://www.telerik.com/help/aspnet-ajax/grid-changing-structure-dynamically.html

I hope this will prove helpful.

Greetings,
Eyup
the Telerik team

[Miky]

Hi

Thnx for the answer.

Since I can't use the session in this case (too long to explain) do you have an example of how I would do it with the viewstate ?

Kind regards,

Michel

[Eyup]

Hello Michel,

I have created a sample RadGrid web site where I implemented the described functionality. Could you please check out the attached application and let me know about the result?

Kind regards,
Eyup
the Telerik team